I purchased the new Pain Pod Heat recently as we had experience with Pain Pods previously (an old model) which had served us very well. The new model is excellent extremely easy to set up with basic controls that are not confusing. I selected this model as my wife Lea has issues with her lower back i.e. compressed fractures to the L4/L5 with nerve damage etc. The 3 functions TENS/EMS & Heat are ideal for Lea's issues. She is extremely happy with her new Pain Pod as it is giving her much needed relief, which is a godsend. This also helps with reducing reliance on pain killers.